KR20200004091A - Coupler, Manufacturing Method Thereof, and Coupling Method Using Same - Google Patents

Abstract

Provided are a coupler and a manufacturing method thereof, and a coupling method using the same. A coupler body, which is processed into a diameter fit to the size of a pipe to be inserted to the outside of the pipe and surrounds the edge of a contact surface where first and second pipes come into contact with each other, is provided. A slot is formed in the coupler body in a longitudinal direction to confirm the position of the contact surface of the first and second pipes inserted to the inside of the coupler body to be in contact with each other. The slot and the contact surface where the first and second pipes come into contact with each other are welded to connect the first and second pipes. According to an embodiment of the present invention, costs for manufacturing a coupler can be lowered due to a simple structure of the coupler. Since pipes are accurately and easily centered when the pipes need to be connected, a loss of a cross section area and a loss of vertical power can be prevented, thereby enabling more stable and strong pipe connection, convenient work, and a shortened construction period.

Description

Coupler, Manufacturing Method and Coupling Method Using Them {Coupler, Manufacturing Method Thereof, and Coupling Method Using Same}

The present invention relates to a coupler, a method for manufacturing the same, and a coupling method using the same. More particularly, the manufacturing cost of the coupler is reduced through a simple structure of the coupler, and the convenience and the air shortening effect of the pipe and the pipe connection work. It provides a coupler and a method of manufacturing the same and a coupling method using the same.

Since water or gas which is absolutely necessary for living and industrial facilities is usually carried through a pipe from a long distance, it is necessary to connect a plurality of pipes having a predetermined unit length to each other, and a coupler for pipe connection is used.

In the conventional method of connecting pipes, butt welding is performed by placing a pipe on the pipe and welding the entire outer diameter when the pipe is vertically connected.

However, such a pipe-to-pipe butt welding is difficult to align the center of the pipe accurately, resulting in cross-sectional loss and loss of force acting vertically, making it difficult to achieve a stable and stable coupling, and to increase the amount of welding to compensate for this problem. In addition, there was a problem that the difficulty of work and increase the construction period.

(Patent Document 1) Korean Patent Publication No. 10-2005-0098347 (Published October 12, 2005)

(Patent Document 2) Korean Utility Model Registration No. 20-0242187 (Registered on July 30, 2001)

The present invention has been made to solve the conventional problems,

The object of the present invention is to reduce the cost of manufacturing the coupler through the simple structure of the coupler, and to prevent the loss of the cross-sectional area and the force acting vertically by precisely and easily fitting the center of the pipe and the pipe when connecting the pipe, the stable and solid pipe The present invention provides a coupler, a method of manufacturing the same, and a coupling method using the same, which can perform not only a connection work but also a convenience and an air shortening effect.

Coupler according to an aspect of the present invention provided to achieve the above object is processed to a diameter that meets the standard of the pipe to be fitted to the outside of the pipe surrounds the outer side of the contact surface where the first pipe and the second pipe butt Is provided with a coupler body, the coupler body is formed in the slot along the longitudinal direction so as to check the position of the contact surface of the first and second pipes fitted to be fitted therein, the first and second pipes The first pipe and the second pipe are connected by welding the contact surface and the slot.

In addition, the slot is formed so that the center is located in the center of the length of the coupler body, the contact surface to which the first and second pipes are located is located in the center of the slot, along the diameter of the coupler body It is characterized in that a plurality is formed at regular intervals.

Coupler manufacturing method according to another aspect of the present invention comprises the steps of cutting the circular tube machined to a diameter that meets the standard of the pipe to a size surrounding the outer side of the contact surface where the first pipe and the second pipe butt; And processing a slot along the longitudinal direction of the circular tube.

Here, the slot is processed so that the center is located in the center of the length of the circular tube, characterized in that a plurality of processing at regular intervals along the diameter of the circular tube.

Another embodiment of the manufacturing method of the coupler comprises the steps of cutting the flat iron sheet to a size that meets the pipe standard; Machining a slot along a longitudinal direction of the cut iron sheet; Bending both ends by bending the width direction of the iron plate so that the slot is formed in the longitudinal direction of the iron plate; And grinding the welded portion of the banded iron plate.

Here, the slot is processed so that the center is located in the center of the iron plate length, characterized in that a plurality of slots are processed at regular intervals along the width direction of the iron plate.

Coupling method according to another aspect of the present invention comprises the steps of fitting the coupler to the outside of the first pipe so that the end of the first pipe is visible; Contacting the first pipe and the second pipe such that the end of the second pipe abuts against the end of the first pipe; Pushing the coupler to position the center of the slot on a contact surface where the first pipe and the second pipe are butted; And connecting the first pipe and the second pipe by welding the slot and the contact surface to which the first pipe and the second pipe are opposed to each other.

According to an embodiment of the present invention, the structure of the coupler is reduced through a simple structure of the coupler, and it is stable by preventing the loss of the cross-sectional area and the vertical force by fitting the pipe and the center of the pipe accurately and easily when connecting the pipe. In addition to performing solid pipe connection work, it is possible to realize the convenience of work and the effect of reducing air.

1 is a perspective view showing a coupler according to an embodiment of the present invention.
Figure 2 is an enlarged view for explaining the state that the center of the slot is located in the center of the coupler body length of the coupler according to an embodiment of the present invention.
Figure 3 is a flow chart showing a coupler manufacturing method according to an embodiment of the present invention.
Figure 4 is a flow chart showing a coupler manufacturing method according to another embodiment of the present invention.
5 to 8 are process diagrams illustrating a coupling method according to an embodiment of the present invention, FIG. 5 illustrates a state in which a coupler is inserted outside the first pipe, and FIG. 6 illustrates a state in which the coupler is pushed to the first pipe. FIG. 7 illustrates a state in which a center of a slot is positioned on a contact surface of a second pipe, and FIG. 7 illustrates a state in which a contact surface in which a first pipe and a second pipe correspond to each other is positioned at a center of the slot, and FIG. The state where the 1st pipe and the 2nd pipe were connected by welding the slot and the contact surface which a 2nd pipe opposes is shown.

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to embodiments in which the invention may be practiced and to the accompanying drawings, which are shown by way of illustration of the embodiments. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. It is also to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention.

The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

The terms used in the present invention have been selected as widely used general terms as possible in consideration of the functions in the present invention, but this may vary according to the intention or precedent of the person skilled in the art, the emergence of new technologies and the like. In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the corresponding part of the description. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents throughout the present invention, rather than the names of the simple terms.

In the present invention, when a part of the whole "includes" a certain component, this means that it may further include other components, not to exclude other components, unless otherwise stated. In addition, the terms “… unit”, “… module” described in the specification mean a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

1 and 2, the coupler according to an aspect of the present invention is a coupler body 100 having a diameter and a predetermined length in accordance with the standard of the pipe, the slot 110 is formed along the longitudinal direction of the coupler body It is configured to include.

First, the coupler body 100 is processed to a diameter that meets the outer diameter standard of the pipe so as to fit on the outside of the pipe.

In addition, the coupler body 100 has a slot 110 formed in the longitudinal direction.

The slot 110 is for checking the position of the pipe fitted into the coupler body 100, and is formed such that the center of the slot 110 is located at the center of the coupler body 100. That is, the center of the coupler body length a and the center of the slot length b are processed to match. And, the slot 110 is formed in plural at regular intervals along the diameter of the coupler body (00).

The coupler configured as described above is manufactured by the following method.

As shown in FIG. 3, a method of manufacturing a coupler according to an embodiment processes a round tube to a diameter meeting a standard of a pipe, and surrounds the outer side of a contact surface where the first pipe and the second pipe meet the processed round tube. Cut to size. (S110) Here, the circular tube may be processed according to the standard of the pipe to be connected, or may be already used circular tube. At this time, it is preferable to use a STK400 or SS400 material for the round tube.

Then, the slot is processed along the longitudinal direction of the circular tube. (S120) The slot is processed so that the center of the slot is located at the center of the circular tube length, and a plurality of such slots are processed at regular intervals along the diameter of the circular tube. . At this time, although the number of slots is irrelevant, 2 to 4 can be said to be suitable.

The coupler can also be manufactured by other manufacturing methods.

As shown in FIG. 4, in the method of manufacturing a coupler according to another embodiment, first, a flat iron plate is cut into sizes that meet a pipe standard.

Then, the slot is processed along the longitudinal direction of the cut iron plate (S220).

Here, the slot is processed so that the center of the slot is located in the center of the iron plate length, a plurality of slots are processed at regular intervals along the width direction of the iron plate. At this time, although the number of slots is irrelevant, 2 to 4 can be said to be suitable. In addition, the cutting of the iron plate and the processing of the slot can be processed using a laser, but also through other methods.

Then, the band is rolled in the width direction of the iron plate so that the slot is formed in the longitudinal direction of the iron plate, and both ends are welded. (S230) At this time, the iron plate may be banded and then welded at both ends and bend again. In addition, it is preferable to use SS400 material in consideration of bending (rolling iron plate round).

Then, the welded portion of the banded iron sheet is smoothly ground. (S240)

The coupler manufactured as described above connects the pipe with the pipe in the following manner.

As shown in FIG. 5, the coupler body 100 is fitted to the outside of the first pipe P1. At this time, the coupler body 100 is fitted by a predetermined depth so that the end (one end) of the first pipe P1 is exposed over the coupler body 100.

And, as shown in Figure 6, the end of the second pipe (P2) abuts the end of the first pipe (P1). That is, in the vertical coupling of the pipe, the second pipe P2 is raised above the first pipe P1 so that the end of the first pipe P1 and the end of the second pipe P2 come into contact with each other.

As shown in FIG. 7, the center of the slot 110 is provided on a contact surface where the first pipe P1 and the second pipe P2 come into contact with each other by pushing the coupler main body 100 fitted to the outside of the first pipe P1. Locate it.

As illustrated in FIG. 8, the first pipe P1 and the second pipe P2 are welded to the contact surface and the slot 110 in which the first pipe P1 and the second pipe P2 meet each other. Connect it. That is, when the welding (W) in the slot 110, the contact surface of the first pipe (P1) and the second pipe (P2) located in the center of the slot 110 is welded to the first pipe (P1) and the second pipe (P2) and the coupler body 100 is coupled. At this time, since a plurality of slots 110 are formed along the diameter of the coupler body 100, the coupling force of the first pipe P1 and the second pipe P2 by welding W to the plurality of slots 110, respectively. Will be secured.

In addition, since the longitudinal centers of the first pipe P1 and the second pipe P2 coincide with each other via the coupler body 100, the cross-sectional areas of the first and second pipes P1 and P2 are in contact with each other 1: 1. The circular diameter is centered to prevent the loss of vertical force.

As described above, the present invention reduces the manufacturing cost of the coupler through the simple structure of the coupler, and prevents the loss of the cross-sectional area and the vertical force by fitting the center of the pipe and the pipe precisely and easily when connecting the pipe. Not only can the connection work be carried out, but also the convenience and the air shortening effect can be realized.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such suitable changes and modifications Equivalents should be considered to be within the scope of the present invention.

100: coupler body 110: slot
P1: first pipe P2: second pipe

Claims (10)

A coupler main body is provided to be fitted to the outside of the pipe and is machined to a diameter conforming to the standard of the pipe to surround the outside of the contact surface where the first pipe and the second pipe are opposed to each other.
The coupler body is formed with a slot along the longitudinal direction so as to check the position of the contact surface of the first and second pipes that are fitted to the inside,
A coupler, wherein the first pipe and the second pipe are joined to each other by welding the slots and the contact surfaces facing each other. The method of claim 1,
And the slot is formed such that the center is located at the center of the coupler body length, and the contact surface to which the first and second pipes meet is located at the center of the slot. The method of claim 2,
Coupler characterized in that the slot is formed in plurality at regular intervals along the diameter of the coupler body. Cutting the circular tube processed to a diameter that meets the size of the pipe to a size surrounding the outer side of the contact surface where the first pipe and the second pipe meet each other; And
Processing a slot along the longitudinal direction of the circular tube; Coupler manufacturing method comprising a. The method of claim 4, wherein
The slot is a coupler manufacturing method, characterized in that the center is located in the center of the circular tube length. The method of claim 5,
The slot is a coupler manufacturing method characterized in that a plurality of slots are processed at regular intervals along the diameter of the circular tube. Cutting the flat iron sheet to a size conforming to the pipe specification;
Machining a slot along a longitudinal direction of the cut iron sheet;
Bending both ends by bending the width direction of the iron plate so that the slot is formed in the longitudinal direction of the iron plate; And
Grinding the weld of the banded iron plate; Coupler manufacturing method comprising a. The method of claim 7, wherein
The slot is a coupler manufacturing method, characterized in that the center is located in the center of the iron plate length. The method of claim 8,
The slot is a coupler manufacturing method characterized in that a plurality of slots are processed at regular intervals along the width direction of the iron plate. Fitting a coupler body to the outside of the first pipe such that the end of the first pipe is visible;
Contacting the first pipe and the second pipe such that the end of the second pipe abuts against the end of the first pipe;
Pushing the coupler body to position a center of a slot on a contact surface where the first pipe and the second pipe are in contact with each other; And
And connecting the first pipe and the second pipe by welding the slot and the contact surface to which the first pipe and the second pipe are opposed to each other.

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